Sony CDX-S2250 / CDX-S2250S Service Manual ▷ View online
25
25
CDX-S2250/S2250S
CDX-S2250/S2250S
3-12. PRINTED WIRING BOARD – KEY BOARD –
•
See page 15 for Circuit Boards Location.
: Uses unleaded solder.
Ref. No.
Location
• Semiconductor Location
Ref. No.
Location
D901
G-11
D902
G-11
D981
G-6
D982
G-10
IC901
G-8
IC971
D-14
LED931
C-12
LED932
C-4
LED941
B-14
LED942
C-14
LED951
A-12
LED952
A-3
Q921
G-4
1
A
B
C
D
E
F
G
H
2
3
4
5
6
7
8
9
10
11
12
13
14
R907
R909
R910
IC971
1-864-521-
11
1-864-521-
11
LSW911,LED942
LSW910,LED941
(SEEK)
LSW910
LSW911
LED942
LSW906
LSW905
LSW906
VOL
SOURCE
MODE
DSPL
SENS
1
2
3
4
5
6
PTY
AF/TA
OFF
ATT
EQ3
LSW904
LED952
(DISC-L)
LSW904
LSW903
LSW907
LSW921
LSW920
LSW919
LSW918
LSW917
LSW916
LSW915
LSW914
LSW913
LSW912
LSW902
IC971
LSW909
LED941
LSW908
R908
R957
R951
R952
R943
R944
52
40
30
10
1
20
50
R939
R940
R935
R936
JP935
R925
R926
R929
R930
LSW905
LSW901
LED951
(DISC-R)
LCD901
LIQUID CRYSTAL DISPLAY PANEL
LED931
LED932
(LCD BACK LIGHT)
(LCD BACK LIGHT)
R956
R973
R955
R921
R922
R933
R911
R912
R913
R914
R915
R916
R917
R918
R919
R901
R902
R903
R904
R906
IC901
R972
C971
R974
R976
R977
R978
R979
D901
R981
R982
D981
C981
C982
R983
R984
R985
R986
R987
C983
C984
C985
D902
D982
Q921
R947
R948
R905
R967
R961
CN901
B
MAIN BOARD
CN701
R962
R963
FMB4
R995
FMB3
C986
JP961
(Page 20)
26
26
CDX-S2250/S2250S
CDX-S2250/S2250S
3-13. SCHEMATIC DIAGRAM – KEY BOARD –
D901
R901
R902
R903
R904
R905
R906
R919
R907
R908
R909
R910
R911
R912
R913
R914
R915
R916
R917
D981
R972
R984
R985
R986
LSW909(2/2)
LSW908(2/2)
LSW913(2/2)
LSW914(2/2)
LSW915(2/2)
LSW916(2/2)
LSW917(2/2)
LSW918(2/2)
LSW919(2/2)
LSW921(2/2)
R921
R929
LSW903(2/2)
R981
R982
LSW910(2/2)
LSW904(2/2)
LSW906(2/2)
R974
R918
LSW912(2/2)
LSW911(2/2)
LSW902(2/2)
LSW901(2/2)
LSW907(2/2)
LSW905(2/2)
R925
R935
R939
R947
R957
R933
R943
R951
R955
R962
LED931
LED932
R967
R963
JP961
CN901
R977
R979
R978
R973
C971
C982
C981
C984
C985
C983
R983
R987
D982
R976
D902
LSW920(2/2)
JP935
LCD901
Q921
IC901
LED951
LED942
LED941
LED952
R956
R952
R948
R944
R940
R936
R930
R926
R922
R961
R995
IC971
C986
LSW
908(1/2)
LSW
909(1/2)
LSW
910(1/2)
LSW
911(1/2)
LSW
912(1/2)
LSW
913(1/2)
LSW
914(1/2)
LSW
915(1/2)
LSW
916(1/2)
LSW
917(1/2)
LSW
918(1/2)
LSW
919(1/2)
LSW920(1/2)
LSW
921(1/2)
LSW
901(1/2)
LSW
902(1/2)
LSW
903(1/2)
LSW
904(1/2)
LSW
905(1/2)
LSW
906(1/2)
LSW
907(1/2)
(Page 24)
27
CDX-S2250/S2250S
• IC Block Diagrams
– MAIN Board –
IC51
TDA7333013TR
IC401
BD3808FS-FE2
VDDA
INTERPOLATOR
RAM
BUFFER
&
CONTROL
LOGIC
TEST LOGIC
&
PIN MUX'S
I
2
C/SPI
INTERFACE
BAND PASS
FILTER
SIGMA DELTA
CONVERTER
SINC4
FILTER
REF3
REF2
REF1
VSS
VDDD
RESETN
TM
1
MPX
16
CSN
SDAOUT
RDSREG
3
INTN
MPX
SINC4REG
SDAIN
SCK
SPI
TESTREG
SCK
SPI
TESTREG
14
2
3
4
5
6
7
8
INTN
15
SA_DATAOUT
13
SDA_DATAIN
12
SCL_CLK
11
OSCILLATOR
XTO
10
XTI
9
RDS
DEMODULATOR &
SYNCHRONIZATION
2
32
31
30
29
28
27
26
25
24
23
22
I
2
C BUS
LOGIC
VCO
MIX
FADER
(0~-58,
-∞dB)
FADER
(0~-58,
-∞dB)
FADER
(0~-58,
-∞dB)
FADER
(0~-58,
-∞dB)
VOLUME
(+23~-79dB,-∞dB
1dB STEP)
VOLUME
(+23~-79dB,-∞dB
1dB STEP)
INPUT GAIN
(0~15dB,1dB STEP)
INPUT SELECTOR
(4 STEREO INCLUDE 1 ISOLATION INPUT)
INPUT GAIN
(0~15dB,1dB STEP)
ANTI-ALIASING
FILTER
ANTI-ALIASING
FILTER
MUTE
fc:40kHz
fc:40kHz
MUTE
6
7
8
9
10
11
3
4
5
2
1
DGND
AGND
FIL
AN
AP2
AP1
B1
B2
C1
C2
NC
NC
NC
NC
NC
NC
NC
12
14
16
13
15
SDA
SCL
MUTE
SEL
ADJ
VCC
OUTF1
OUTR1
OUTF2
OUTR2
NC
NC
NC
OUTS1
OUTS2
21
20
19
18
17
VCC
VCC/2
TONE
PASS
PASS
BASS
fo:60,70,80,100,120,140,160,200Hz
Q:0.5,0.75,1,1.25
fo:60,70,80,100,120,140,160,200Hz
Q:0.5,0.75,1,1.25
MIDDLE
fo:500Hz,1kHz
Q:1
fo:500Hz,1kHz
Q:1
TABLE
fo:5,7.5,10,12.5kHz
fo:5,7.5,10,12.5kHz
TONE
PASS
PASS
EFFECT (0dB~
+20dB,2dB STEP)
EFFECT (0dB~
+20dB,2dB STEP)
2ND ORDER
LPF
2ND ORDER LPF
fc:OFF,80,120,160Hz
Q: 0.707
fc:OFF,80,120,160Hz
Q: 0.707
BASS,TREBLE, MIDDLE
(-15dB~+15dB,1dB STEP)
BASS,TREBLE, MIDDLE
(-15dB~+15dB,1dB STEP)
GAIN+ATT
(+10~-29,
-∞dB)
28
CDX-S2250/S2250S
IC750
TDA8588BJ/N2/R1
MUTE
MUTE
ENABLE
LOGIC
STANDBY/
MUTE
BATTERY
DETECTION
CHIP DETECT/
DIAGNOSTIC
PROTECTION/
DIAGNOSTIC
SWITCH
REGULATOR
SWITCH
REFERENCE
VOLTAGE
LOADDUMP
PROTECTION
TEMPERATURE
PROTECTION
BACK-UP
SWITCH
REGULATOR
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
TAB
OUT-FL-
OUT-FL+
OUT-RL-
OUT-RL+
IN-RL
S-GND
IN-RR
OUT-RR+
OUT-RR-
OUT-FR+
OUT-FR-
DIAG
ANT-REM
AMP-REM
SERVO5V
MECH6V
VP
B.UP+B
SDA
SCL
VP2
PGND3
SVR
IN-FL
IN-FR
BEEP
PGND2
VP1
STB
PGND1
RST
CRES
AUDIO8.3V
GND
PANEL+B
CBU
FL
RL
RR
VP
FR
I
2
C BUS
1
VREF
VDD
GND
CE
CURRENT
LIMIT
2
3
5 VOUT
NC
4
– SERVO Board –
IC6
R1114N151D-TR-FA
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